ENGINEERING

DONE RIGHT

We build secure, complex, and well-designed Flutter mobile and web applications. Flutter Early Adopters from 2018. 40+ projects done.

flutter logo
flutter logo underlineflutter logo underlinesolid flutter early adopters
flutter early adopter

our clients

Our Clients

  • flutter logo image
  • apple logo image
  • linux logo image
  • linux logo image
  • linux logo image
  • linux logo image
we are

we are

flutter logo

Engineers with a focus on clean and testable code, privacy, and security. Our main area of expertise is Flutter mobile and web app development. We excel by applying industry best practices and standards.

Member of Flutter for Web Early Adopters Program

arrow icon
Mobile Native FoundationMobile native foundation text image

We’re excited to launch the Mobile Native Foundation. Backed by The Linux Foundation, along with Airbnb, Capital One, GitHub, LinkedIn, Microsoft, Slack, Spotify and more...

arrow icon
Proud to be Official Flutter Consultant since 2023
arrow icon
Member of Flutter for Web Early Adopters Program
arrow icon
MOBILE NATIVE
FOUNDATION
arrow icon
Performance Report
arrow icon
Supabase Experts
arrow icon
Partners With RevenueCat
arrow icon

what we do

Analyze, architect, design and implement complex Flutter and Dart mobile and web applications. Cloud or serverless. Healthcare, Robotics and Productivity.

futter icon
cross linesstartup
startups
cross linesrobotics
robotics
cross lineshealthcare
healthcare

Application Development

  • Flutter Mobile (iOS, Android)
  • Flutter Web (Chrome, Safari, Firefox, Edge)
  • Flutter Desktop (Windows, macOS, Linux)
  • CLI
  • Landing pages/Marketing websites

Backend Development

We specialize in crafting high-performance backend systems, leveraging cutting-edge technologies such as Firebase, Supabase, GO, Node.js, TypeScript, and Dart.

Our database development expertise spans PostgreSQL and MongoDB, enabling us to design and optimize databases tailored to the application's unique requirements.

Software Testing and QA

Our comprehensive testing services cover every critical aspect of software quality assurance, including:
  • Smoke, sanity, regression, retest, new features
  • Compatibility with different OS versions
  • API testing with Postman, SoapUI, Fiddler
  • TestRail, Xray, Azure Test Plan, Qase

UI/UX Design

Our expert designers, utilizing Figma, sculpt app interfaces that effortlessly merge form and function, prioritizing intuitive navigation and captivating aesthetics via:
  • User Research
  • Wireframing and Prototyping
  • Visual Design
  • Responsive Design
  • Usability Testing
our team

Projects

We approach every project as a unique challenge that requires our full attention and expertise. Explore our portfolio to see how we can help you tackle your next project with confidence.

Select languages

Dart

Technologies

Flutter, Supabase, Webflow

check it out
arrow icon
Worklog

Worklog

Worklog is a time-tracking tool that has been specifically designed for software engineers.

Select languages

Dart, JS

Technologies

Flutter, Firebase

check it out
arrow ion
Fluxx

Fluxx

Uber-like two-sided peer-to-peer freight platform.

Select languages

Dart

Technologies

Flutter, Firebase, Unity

check it out
arrow ion
Wave

Wave

Mental Health Care App That Works.

Select languages

Dart

Technologies

Flutter, Firebase

check it out
arrow ion
ODrive

ODrive

Web Dashboard for the Robotics Motors.

Select languages

Dart

Technologies

Flutter, Supabase, Webflow

check it out
arrow ion
Worklog

Worklog

Worklog is a time-tracking tool that has been specifically designed for software engineers.

Select languages

Dart, JS

Technologies

Flutter, Firebase

check it out
arrow ion
Fluxx

Fluxx

Uber-like two-sided peer-to-peer freight platform.

portfolio

Our team

A great team is a crucial component to every success. We are setting a high bar in our recruitment process and offer career path program: lifelong learning that make us better every day. Curious minds love it and are welcome!

image corner gridteam work
ball icon

Learn more about our culture, principles, team members, and day-to-day life.

about us
cub line

Join us

Solid Software is a great place to work with passionate people that care about engineering, learning, and applying best practices.

hot vacancies
No items found.

Are you looking for more opportunities?

see all vacancies
arrow right (navigate)
join us
footer figure